The war at the box office continues, with Aamir Khan all set to break SRK's Chennai Express record. The actor is leaving no stone unturned when it comes to his upcoming film, Dhoom 3. After SRK broke Aamir's 3 Idiots record, Aamir is confident Dhoom 3 will break it in just two months.

A source close to the actor says that 3 Idiots which released in 2009 kept its record intact for 4 years. So, Aamir is confident that not only will Dhoom 3 break Chennai Express' record, also his record will remain unbeaten till the year 2020.

Dhoom 3 will release on December 20, and the film also stars Abhishek Bachchan, Uday Chopra and Katrina Kaif.